Keyboard with invisible keys



FIG. 1 is a perspective view of a keyboard with invisible keys showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof when in a use.

The broken lines of FIG. 8 are for showing environmental features and are not part of the design. 

The ornamental design for a keyboard with invisible keys, as shown and described. 